Rotary swinging high lift loader



Feb. 5, 1952 s, HOOVER 2,584,804

ROTARY SWINGING HIGH LIFT LOADER Filed June 25, 1946 2 SHEETS--SHEET l -VVVVVVW 20 INVENTOR. flay/5x. 6. H00 L E/i Feb. 5, 1952 5, H R 2,584,804

ROTARY SWINGING HIGH LIFT LOADER Filed June 25, 1946 2 SHEETSSHEET 2 INVENTOR. .fl4/v/42 6? #00149? Patented Feb. 5, 1952 1 UNITED PATENT OFFICE l 12,5s4,so4 I 1 ROTARY SWINGING HIGHLIFTLOADER Daniel seam, Mansfield, Ohio -Application June 25, 1946, Serial No. 679,150 v 1 Claim. (01. 214132) This invention relates to a rotary. swinging high lift loader, and has for one of its objects the production of a simple and efficient loader which may be swung in either direction for lifting and dumping the loade V A further object of this invention is the production of a simple and efficient means for extending the telescoping dipper stick to deposit the load to one side at a desired location.

Another object, of this invention is the productionof a simple and efficient means forfacilitating the .crowding operation of the scoop or tool so as to scoop or dish the material to be loaded in a manner to produce a concave excavation.

.Other objects and advantages of the present invention will appear throughout the following specification and claims.

In the drawings:

Figure 1 is a side elevational view of the loader;

Figure 2 is a front elevational view;

Figure 3 is a top plan view with certain parts being shown in section, taken on line 3 3 of Figure 1;

Figure 4 is a top plan view of the loader, certain parts being broken away;

Figure 5 is a bottom plan view of the turntable and associated parts illustrating the means for actuating the turn-table.

By referring to the drawing, it will be seen that It designates a tractor which is shown in dotted lines. A yoke fits across the front of the tractor and along the sides thereof, as shown in Figure 1. Braces l2 are secured to the yoke II and extend upwardly thereof and are inclined in a rearward direction. The braces I2 are secured to opposite sides of the yoke II and carry a pivoted member N of an inverted U-shaped structure. A vertically extending brace |3 is secured to each side of the yoke H, at its lower end, and engages the pivoted member 24 at its upper end. i

A forwardly extending link I4 is carried along each side of the yoke II and is pivotally secured at its rear end, as at IS. The links H! are mounted in substantially parallel relation and project forwardly of the yoke A horizontally mounted axle I6 is journaled between the forward ends of the links M and a rotary plate I1 is mounted on a vertical shaft l8 which is extended through the axle l6 and keyed to the plate or turn-table I! to rotate therewith. A suitable motor such as a hydraulic motor I9 is adapted to rotate the plate II to turn the digging tool or dipper 2|] in the desired direction, as will be hereinafter described. I

A vertical standard 2| is carried by the plate I1 near its forward edge and carries a cap 22 at its upper end which is engaged by the braces 23. The braces 23 are connected to the cap 22 at their forward ends by means of a journal bolt 22 which is in spaced vertical alignment with the shaft l8 to facilitate the rotation of the standard 2|. The standard 2| is in this manner supported by two spaced vertically aligned journal elements such as the shaft 8 and the journal bolt 22 These top braces 23 are anchored at their rear ends, as at 23 to the top pivoted member 2 which is supported by the braces l2 and 13. A telescoping dipper stick 24 is pivotally secured, as at 25, to the upper end of the standard 2|. A hydraulic cylinder 26 is pivotally secured to the rotary plate H, as at 21, near the rear edge thereof, and this cylinder 23 engages the dipper stick, as at 21, to adjust the stick 24 forwardly or rearwardly. A hydraulic cylinder 28 is mounted in and secured to, the stick 24, and the plunger rod of the hydraulic cylinder 28 is secured to the extension portion 29 of the dipper stick to move the portion 29 inwardly and outwardly under the control of an operator.

The links l4 are pivoted, as at I5, and may be swung upwardly or downwardly by means of the hydraulic jack or cylinder |4 which is suspended upon the plate I l and is secured between the forward ends of the links M to raise and lower the links and consequently lift or lower the vertical frame 2| together with the dipper stick 24.

A control station A is carried at a suitable location upon the tractor l0 and is connected in any suitable or desired manner to the hydraulic cylinders or jacks M 26 and 28, to raise or lower the links M. raise or lower the dipper stick 24, or to extend the telescoping dipper stick. The hydraulic motor I9 may also be controlled from this control station in any suitable or desired manner.

The motor l9 carries a gear I9 which meshes with the gear I8 which gear I8 is keyed to the shaft [8 to rotate the turn-table M.

It should be understood that the standard 2| may be swung by rotating the plate I! to cause the tool 20 to face in the desired direction, and the dipper stick 24 may be extended to the desired position. The plate l1 may then be rotated to cause the standard 2| to face in a desired direction for dumping and the dipper stick may be extended or retracted and the tool 20 released for dumping.

A tool 20 of a suitable type such as the dipper tool illustrated, is pivotally secured at 30 to the outer end of the portion 29. A retaining latch 3| is pivotally secured, as at 32, to the portion 29, and is provided to overhang the edge of the tool 20 in notched relation, as shown in Figure 1 to hold the tool in a set and digging position. A flexible chain or other means 3| is secured to the outer end of the latch 3| and may extend to a suitable point of. access to the. operator so that the latch 3| may be released at will to permit the tool 20 to swing to a dumping position. After the tool 20 is dumped, the tool 20 will swing to a latch-engaging position when the outer edge 2|) contacts the ground preparatoryto digging or loading. It should be noted that the telescoping dipper stick may be extended to dig at a desired depth, such as is shown in dotted lines,

or it may be extended to dump the load from the.

tool 20 at a desired distance from the tractor l0.

From the foregoing description it should be noted that the standard 2| may be rotated upon thev shaft 8 to face the tool 20 in the desired direction and the telescoping dipper stick 24 may be extended to dig at the desired depth. The dipper stick 24 may be raised by the hydraulic jack or cylinder 26 to the desiredheighth, and the dipper stick 24 may be further extended to move the tool a sufficient distance outwardly to a desired dumping position. The tool or scoop. 20 may be dumped by gravity pull when the latch 3| is released therefrom. The latch 3| may be released by a pull by the operator upon the chain 3 I from any selected location.

It should be understood that certain changes in detail construction may be made without departing from the spirit of the invention so long as these changes fall within the scope of the appended claim.

Having described the invention, what is claimed.

A loader of the class described comprising a wide support, a rotatable plate, a vertical shaft pivotally mounting said plate upon said support, a vertical frame supported upon said plate to one side of said shaft, means for rotating said plate, a tool carried by the vertical frame, means for actuating said tool, vertical braces carried by the support and spaced rearwardly and laterally of the vertical frame, top braces supported at their rear ends upon said vertical braces, said top braces converging toward their forward ends, the vertical frame being pivoted at its upper end to the converging ends of the top braces in vertical alignment with said vertical shaft to facilitate therotation of said vertical frame, the top braces also constituting a rearward and lateral bracing means for the vertical frame, a pivoted member carried by the upper ends of said vertical braces and supporting the rear ends of said top braces.

' and a yoke supporting said vertical braces and vertical frame and connecting said vertical braces and verticalzframe to said support.

DANIEL S. HOOVER.

REFERENCES CITED The following references are of record in the file of-this patent:

UNITED STATES PATENTS Number Name Date 105,883 Bailey Aug. 2, 1870 1,162,607 Hoar Nov. 30, 1915 1,321,983 Cole Nov. 18, 1919 1,649,450 Daniel Nov. 15, 1927 1,805,818 Frisbie May 19, 1931 2,301,555 Mantyla Nov. 10, 1942 2,387,764 Maxwell Oct. 30, 1945 2,391,857 Arps et al Jan. 1, 1946 2,413,097 Barker Dec. 24, 1946 FOREIGN PATENTS Number Country Date 447,460 Germany July 26, 1927 

